RFR: 8293613: need to properly handle and hide tmp VTMS transitions [v4]

[Serguei Spitsyn]

On Fri, 23 Sep 2022 18:32:57 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

>> Serguei Spitsyn has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   1. addressed review comments from Chris; added VirtualThread.java update from Alan
>
> src/hotspot/share/prims/jvmtiThreadState.cpp line 273:
> 
>> 271: 
>> 272:     assert(!thread->is_in_tmp_VTMS_transition(), "sanity check");
>> 273:     assert(!thread->is_in_VTMS_transition(), "VTMS_transition sanity check");
> 
> Why not cover both of these with `!thread->is_in_any_VTMS_transition()`?

It is to be clear what condition caused the assert as they are different beasts.

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PR: https://git.openjdk.org/jdk/pull/10321